Home / 889,641.64-1,227,793.38-507,725.80

Finding the Fourth Proportional to 889,641.64, 1,227,793.38 and 507,725.80

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Solution

The fourth proportional to 889,641.64, 1,227,793.38 and 507,725.80 is: 700,711.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,641.64 : 1,227,793.38 = 507,725.80 : x
  2. Step 2: Convert to fraction form
    889,641.64/1,227,793.38 = 507,725.80/x
  3. Step 3: Cross multiply
    889,641.64x = 1,227,793.38 × 507,725.80
  4. Step 4: Simplify right side
    889,641.64x = 623,382,376,095.20
  5. Step 5: Solve for x
    x = 623,382,376,095.20/889,641.64
  6. Step 6: Final answer
    x = 700,711.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.